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A 49-year-old man with a history of alcohol use presents with severe epigastric pain radiating to the back. Serum lipase is elevated. What is the primary pathophysiology of acute pancreatitis?

A 45-year-old patient reports persistent sadness, fatigue, insomnia, poor concentration, and loss of interest in activities for the past 3 weeks. Which DSM-5 requirement must be present for a diagnosis of major depressive disorder?

Which characteristic best distinguishes hepatitis C infection?

A patient with small intestinal damage has decreased villi and microvilli. What is the primary physiological consequence?

A 12-year-old girl has difficulty organizing tasks, frequently loses school supplies, and forgets daily activities. Symptoms have been present for more than 6 months and affect academic performance. Which DSM-5 requirement must also be met to diagnose ADHD?

Which factor is the primary stimulus for breathing under normal physiological conditions?

A newborn fails to pass meconium within 48 hours after birth and develops abdominal distension. What is the underlying defect?

What are 3 differentials for your diagnosis and your rationale (reasoning)?

Which neurotransmitters are affected in those who have anxiety?

A patient tests positive for anti-HCV antibodies. What is the next step to confirm active infection?